全国生态环境质量持续改善，多地环保成绩单亮眼

Core Viewpoint - Since the beginning of 2024, the national ecological environment quality has continuously improved, with improvement indicators exceeding the scheduled progress requirements of the "14th Five-Year Plan" [1] Group 1: Air Quality Improvements - Beijing's PM2.5 annual average concentration in 2024 is 30.5 micrograms per cubic meter, meeting the national air quality secondary standard for four consecutive years, with a 65.9% decrease compared to 2013 [2] - The number of good air quality days in Beijing reached 290 in 2024, the highest on record, while heavy pollution days were reduced to 2, the lowest ever [2] - Guangdong Province reported an air quality good rate of 95.8%, the highest since the new standard was implemented [5] Group 2: Water Quality and Ecosystem - Hainan Province reported an overall air quality good rate of 96.4%, with no sections of surface water classified as worse than Class V [3] - Jiangsu Province achieved a surface water national examination section good rate of 93.8%, maintaining high water quality standards for three consecutive years [5] - The average water quality of Taihu Lake reached Class III for the first time, meeting national "good" lake standards for the entire year [5] Group 3: Ongoing Challenges - Despite improvements, the ecological environment quality in China remains unstable, with structural, fundamental, and trend pressures not fundamentally alleviated [5] - Challenges include the difficulty of coordinated reduction of major air pollutants, the arduous tasks of water ecological protection and restoration, and persistent soil and groundwater pollution issues [5] - The Ministry of Ecology and Environment emphasizes the need for enhanced air pollution control measures and the management of urban black and odorous water bodies [6]